Harrow



M. H. GOGSWELL.

(No Model.)

HARROW.

Patented Aug. 4, 1885.

M- H C ays-waif lilniTE TATEs PATENT Erica MERRITI H. COGSWELL, OF BLISSFIELD, MICHIGAN.

HARROW.

SPECIFICATION forming part of Letters Patent No. 323,400, dated August 4:, 1885,

Application filed June 5, 1885.

harrows; and it consists in the peculiar construction and arrangement of devices that will be more fully set forth hereinafter, and particularly pointed out in the claim.

In the accompanying drawings. Figure 1. is a top plan View of a harrow embodying my invention. Fig. 2 is a detailed sectional view of one of the barrow-teeth. Fig. 3 is a detailed perspective view of one of the hinges.

My barrow is formed of two sections, A, each of which is composed of the toothed beams B and the cross or tie beams G, which are bolted to the beams B, arranged obliquely thereto and parallel to each other. Metallic braces D extend diagonally across the upper sides of the harrow sections, and are bolted thereto by the same bolts that are employed in securing the beams together. These braces strengthen the liarrowsections and prevent them from rocking and working loose at the 0 joints.

E represents the barrow-teeth, which are secured in the beams B, and are each composed of the hollow iron cylinder 8 and the sharpened steel point or plug 6, that is secured in the cylinder. This construction of the harrow tooth possesses numerous advantages, making a very strong and light tooth, and enabling a great number of them to be used in a harrow without making it too heavy. These teeth are not likely to bend nor to break at the point, and are also sclfsharpenin (No model.)

The hinges F, which I employ to secure the sections of my harrow together, are each composed of the sections ff, which are bent iron rods, having the loops at their meeting ends. The loopf of the sectionj" is open, as at f, to admit the insertion of the loop f" of the sectionf therein. The greatest strain upon these hinges, when the harrow is in operation, comes upon the bends f thereof, where the loops are formed, and in order to strengthen the hinges at this point and to prevent the sections there of from turning in the beams of the harrowsections I provide collars G, which are slipped over the shanks of the hinge-sections, and are notched, as at y, to receive the bends of the hingesections and thereby protect them from strain, and are further provided with spurs or projections g on their inner faces, which spurs enter recesses made in the beams of the harrow-sections and prevent the hinge sections from turning.

A draft-beam, H, is attached to the harrowsections in the usual manner.

Having thus described my invention, I claim The hinge formed of the sectionsff, having the loopsf andf, and the bends f and the collars G, having the notches g to receive the bendsf and the spurs or projections g, for the purpose set forth, substantially as described.

In testimony that I claim the foregoing as my own I have hereto alfixed my signature in presence of two witnesses.

MERRITT H. COGSW E-LL.

\Vitnesses:

O. F. SHELDON, J. D. CARPENTER. 

